Joist Investigation Form

Engineers, Architects, Specifying Professionals, Contractors and others trying to identify older joists found in the field can now fill out the form below, or they can use this downloadable form to provide the necessary information to the SJI office. Please fill out as much information as possible. This will help the SJI office in making a proper match of your joist information to those in our extensive historical files.

When filling in the form regarding the joist chord and web member properties, it is recommended that the field measurements be taken with a micrometer rather than a tape measure, since chord thicknesses can vary by as little as 1/64 inch and web diameters can vary by 1/32 inch.

* Required

First Name *

Last Name *

Email Address *

Company *

Phone:

Fax:

Cell:

Project Details

Jobsite Location City/State: *

Project Name: *

Why are you requesting this information? Select all that apply.

Evaluation

Inspection

New construction

Seismic retrofit

Field or erection problem

Legal issue

Rehabilitation or reuse

Structural problem

Other describe:

Supplementary Information

What year was the building constructed
or approximate age of the structure?

Who was the joist manufacturer?

Is there a tag on the joist?

NoYesYes? Provide tag information

What type of trusses are the joists?

WarrenModified WarrenPrattOther, describe or attach sketch:

What were the joists used for?

Roof loadingFloor loading

What type of bridging is used?

HorizontalDiagonal

Are the joists top or bottom bearing?

Top bearingBottom bearing

What is the joist span or length of joist?

What is the joist spacing?

What is the interior panel point spacing?

What is the joist depth?

What is the height of the joist seat?

2-1/2"5"Other, describe or attach sketch:

Note: Top chord and bottom chord are usually NOT the same size, so please make sure you measure both.